# Pascal Command

- Pascal[ <Number of Successes>, <Probability of Success> ]
- Returns a bar graph of a Pascal distribution.
*Parameters:**Number of Successes*: number of independent Bernoulli trials that must be successful*Probability of Success*: probability of success in one trial

- Pascal[ <Number of Successes>, <Probability of Success>, <Boolean Cumulative> ]
- Returns a bar graph of a Pascal distribution when
*Cumulative*= false. - Returns a graph of a cumulative Pascal distribution when
*Cumulative*= true. - First two parameters are same as above.

- Pascal[ <Number of Successes>, <Probability of Success>, <Variable Value>, <Boolean Cumulative> ]
- Let X be a Pascal random variable and
*v*the variable value. - Returns P( X =
*v*) when*Cumulative*= false. - Returns P( X ≤
*v*) when*Cumulative*= true. - First two parameters are same as above.

## CAS Syntax

- Pascal[ <Number of Successes>, <Probability of Success>, <Variable Value>, <Boolean Cumulative> ]
- Let X be a Pascal random variable.
- Returns P( X =
*v*) when*Cumulative*= false. - Returns P( X ≤
*v*) when*Cumulative*= true. **Example:**The number of independent Bernoulli trials that must be successful is n = 1, the probability of success in one trial is p =, the variable value is v = 2 and "Cumulative" = false.`Pascal[ n, p, v, false]`

yields